Algebrahard · Past Paper
Factorize x^2 - 2xy + y^2 - 1.
A(x-y-1)(x-y+1)
B(x+y-1)(x+y+1)
C(x-y-1)^2
D(x-y+1)^2
✓ Correct Answer: A — (x-y-1)(x-y+1)
(x-y)^2 - 1^2 = (x-y-1)(x-y+1).
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✓ Correct Answer: A — (x-y-1)(x-y+1)
(x-y)^2 - 1^2 = (x-y-1)(x-y+1).
Share this question